Peter J. Y. Chang

Person

Rockville, MD, US

People

Patents Grantslast 30 patents

Information Patent Grant
Caulk dispensing device with sure-grips
- Patent number 7,398,899
- Issue date Jul 15, 2008
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Two-in one caulk finishing tool
- Patent number 7,127,769
- Issue date Oct 31, 2006
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Multi-front front catch plate design for various multi-component ca...
- Patent number 7,073,687
- Issue date Jul 11, 2006
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Sure grips for a caulk dispensing device
- Patent number D520820
- Issue date May 16, 2006
- Peter J. Y. Chang
- D08 - Tools and hardware
Information Patent Grant
Extended dispensing device
- Patent number D455619
- Issue date Apr 16, 2002
- Peter J. Chang
- D08 - Tools and hardware
Information Patent Grant
Cartridge stabilizing plate for dual barrel dispensers
- Patent number 6,290,101
- Issue date Sep 18, 2001
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Extended piggyback dispensing device with interchangeable applicati...
- Patent number 6,220,485
- Issue date Apr 24, 2001
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Effective trigger grip power device for caulk dispensing devices
- Patent number 6,176,398
- Issue date Jan 23, 2001
- Peter J. Chang
- G01 - MEASURING TESTING
Information Patent Grant
Cartridge tip cutting assemblies for caulk dispensing devices
- Patent number 5,815,925
- Issue date Oct 6, 1998
- Peter J. Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Dripless drive resistance clip for caulk dispensing devices
- Patent number 5,788,126
- Issue date Aug 4, 1998
- Peter J. Y. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Cartridge lock for caulk dispensing devices
- Patent number 5,762,237
- Issue date Jun 9, 1998
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Plunger shaft retainer and trigger release mechanisms for user-sele...
- Patent number 5,653,363
- Issue date Aug 5, 1997
- Peter J. Y. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Constricted spring pressure relief mechanism for dripless drive cau...
- Patent number 5,529,225
- Issue date Jun 25, 1996
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Caulk dispensing device with multi-position thrust selection dial
- Patent number 5,381,931
- Issue date Jan 17, 1995
- Peter J. Y. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Double reduction gear for dispensing gun
- Patent number 5,295,614
- Issue date Mar 22, 1994
- Peter J. Y. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Caulk dispensing device with thumb-control lock
- Patent number 5,211,312
- Issue date May 18, 1993
- Peter J. Y. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Variable thrust caulk dispensing device
- Patent number 5,197,635
- Issue date Mar 30, 1993
- Peter J. Y. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...

Patents Applicationslast 30 patents

Information Patent Application
Caulk dispensing device with sure-grips
- Publication number 20050263544
- Publication date Dec 1, 2005
- Peter J. Chang
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Multi-front front catch plate design for various multi-component ca...
- Publication number 20050019172
- Publication date Jan 27, 2005
- Peter J. Chang
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Two-in one caulk finishing tool
- Publication number 20050005379
- Publication date Jan 13, 2005
- Peter J. Chang
- E04 - BUILDING

Peter J. Y. Chang

Person

Patents Grantslast 30 patents

Caulk dispensing device with sure-grips

Two-in one caulk finishing tool

Multi-front front catch plate design for various multi-component ca...

Sure grips for a caulk dispensing device

Extended dispensing device

Cartridge stabilizing plate for dual barrel dispensers

Extended piggyback dispensing device with interchangeable applicati...

Effective trigger grip power device for caulk dispensing devices

Cartridge tip cutting assemblies for caulk dispensing devices

Dripless drive resistance clip for caulk dispensing devices

Cartridge lock for caulk dispensing devices

Plunger shaft retainer and trigger release mechanisms for user-sele...

Constricted spring pressure relief mechanism for dripless drive cau...

Caulk dispensing device with multi-position thrust selection dial

Double reduction gear for dispensing gun

Caulk dispensing device with thumb-control lock

Variable thrust caulk dispensing device

Patents Applicationslast 30 patents

Caulk dispensing device with sure-grips

Multi-front front catch plate design for various multi-component ca...

Two-in one caulk finishing tool